What we know about the measurement:

Jamo Concert 8 is a passive bookshelves that cost around 2500 USD for a pair.

  • Quality of the measurement data is low.
  • Origin of the data is Misc.
  • Format of the data is a set of 36 horizontal and 36 vertical measurements .
  • Sensitivity: 80.3dB (avg. 100Hz-1kHz for 2.83V estimated at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 52.6Hz (resp. 46.2Hz).
  • Reference level is normalised to -0.2dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.0dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-50.0°, 50.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-20.0°, 20.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 5.47 and would be 7.67 with a perfect subwoofer.
      • Details: NBD: ON 0.317, LW 0.294, SP 0.294, PIR 0.277; SM: SP0.875, PIR0.695; LFQ 1.574, LFX 46Hz
    • Tonality (Preference) Score is 6.79 with an EQ and would be 8.72 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.251, LW 0.198, SP 0.246, PIR 0.189; SM: SP0.959, PIR0.959; LFQ 1.574, LFX 40Hz
  • Link to original Review: asr review. .
  • Vendor specifications:
    • Sensitivity 91 dB
    • Impedance 4 Ohm
    • Size
      • Width 245mm
      • Height 380mm
      • Depth 310 mm)
    • Weight 13.0 kg
Jamo Concert 8
AutomaticEQ (IIR)
Set preamp gain to: -3.1dB.
Type Freq Q Gain
3 41.0 1.91 2.99
3 190.0 0.81 1.72
3 522.0 2.99 1.32
3 1121.0 2.96 -1.36
3 3068.0 2.97 -1.36
3 7059.0 1.53 -2.52
3 12736.0 2.45 -2.0
Download

These EQ optimise the Harman score and is a good start for far field listening like in your living room.

Jamo Concert 8 filters_auto_eq

AutomaticEQ

Jamo Concert 8 filters_eq_full

Target v.s. EQ

Jamo Concert 8
AutomaticEQ LW (IIR)
Set preamp gain to: -2.2dB.
Type Freq Q Gain
3 49.0 3.0 2.08
3 113.0 2.92 1.02
3 178.0 1.74 1.49
3 289.0 1.97 1.1
3 504.0 3.0 1.24
3 4818.0 2.33 2.16
3 6585.0 2.97 -1.2
Download

These EQ optimise for a flat listening window and is a good start for near field listening like on your desk.

Jamo Concert 8: comparison between EQs
Jamo Concert 8

Comparison betweens various EQs

Jamo Concert 8

Improvements made by EQ

Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
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